BPG致力于知识的发现和传播
Total Visits of This Article
2021 | 总访问次数
排名 国家/地区 数量 占比
1 China 53 52.5%
2 Germany 12 11.9%
3 United States 8 7.9%
4 Canada 6 5.9%
5 Netherlands 5 5%
6 Hong Kong 4 4%
7 Singapore 4 4%
8 India 3 3%
9 Romania 2 2%
10 Russia 2 2%
11 Australia 1 1%
12 France 1 1%